JP2011255926A - Container with inner plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container with an inner plug capable of simply removing the inner plug and repeatedly using it.SOLUTION: The container with the inner plug includes: a container body having a cylindrical mouth part; the inner plug having a discharging opening for a content in the container body and engaging with the cylindrical mouth part of the container body; and an outer cap screw-engaging with the mouth part of the container body. On the outside face of the cylindrical mouth part, a projecting part making one round on the outside face, an annular channel positioning below the projecting part and making one round on the outside face, and a slit crossing obliquely the projecting part and connecting with the annular channel, are provided. The inner plug has a cylindrical side face, and a projection is provided on the inner face of the side face. By passing the projection of the inner plug through the channel provided on the projecting part, and moving it into the annular channel, the projections are engaged to engage the inner plug with the mouth part of the container body.

Description

The present invention relates to a container with a stopper.

There are many containers with internal stoppers that use internal stoppers that close after the contents are filled in containers that contain liquids and the like. A typical inner plug is fitted inside the mouth of the container, and in particular, when the inner plug is fitted by press-fitting, the inner plug cannot be easily removed.

Since the conventional container with an inner stopper was discarded when the shampoo and cosmetics contained in the container were used up, it was not necessary to remove the inner stopper. Many were fitted by press-fitting. However, recently, the number of refill containers that can be refilled by refilling only the contents has increased, and in order to make it easy to open the stopper, a container with an inner stopper in which the stopper is engaged with the container using a protrusion or the like (Patent Document) 1) and the like are used.

JP 2001-158456 A

However, when the inner plug is engaged with the container using the projection, there is a problem that it is difficult to use because there are many things that require a force to remove the inner plug even if it is easy to attach the inner plug. Even if the structure in which the inner plug is easily removed is used, there is a problem that the engagement of the protrusion becomes loose if the inner plug is repeatedly removed.

Accordingly, an object of the present invention is to provide a container with an inner stopper that can be removed for a long period of time by removing the inner stopper with a simple operation.

The container with an inner stopper of the present invention has a container main body having a cylindrical mouth portion, an inner stopper having a discharge port for contents in the container main body and engaging with the cylindrical mouth portion of the container main body, and A container with an inner cap comprising an outer cap that is screw-engaged with the mouth portion of the container body, the outer surface of the cylindrical mouth portion, a projecting portion that makes a round around the outer surface, and a lower portion of the projecting portion An annular groove located around the outer surface, a slit obliquely traversing the protrusion and connected to the annular groove, and a screw thread located below the annular groove and engaged with a thread provided on the outer cap The inner plug has a cylindrical side surface, the inner surface of the side surface is provided with a locking projection that engages with the protruding portion, and the locking projection of the inner plug is provided on the protruding portion. By passing the slit and moving to the annular groove, the locking projection is Engaged with the part, characterized in that attaching the in stoppered mouth of the container body.

The container with an inner stopper of the present invention has a container main body having a cylindrical mouth portion, an inner stopper having a discharge port for contents in the container main body and engaging with the cylindrical mouth portion of the container main body, and A container with an inner cap comprising an outer cap that is screw-engaged with the mouth portion of the container body, the outer surface of the cylindrical mouth portion, a projecting portion that makes a round around the outer surface, and a lower portion of the projecting portion An annular groove located around the outer surface, a slit obliquely traversing the protrusion and connected to the annular groove, and a screw thread located below the annular groove and engaged with a thread provided on the outer cap The inner plug has a cylindrical side surface, the inner surface of the side surface is provided with a locking projection that engages with the protruding portion, and the locking projection of the inner plug is provided on the protruding portion. By passing the slit and moving to the annular groove, the locking projection is By attaching the inner plug to the mouth of the container body by engaging with the portion, the inner plug can be easily removed, and the engagement state of the inner plug does not loosen even after repeated use. Can be used.

It is sectional drawing of a container with an inside stopper. It is a perspective view of an inside plug, (a) is a perspective view from the top, (b) is a perspective view from the bottom. It is the perspective view which expanded the opening part of the container main body. It is a fragmentary perspective view of the container with an inside stopper in the state where the outer cap was removed. It is a top view of the opening part of a container main body. It is a perspective view of the inside plug and mouth part when two locking projections and four slits are provided.

The present invention will be described in detail below with reference to the drawings. FIG. 1 is a cross-sectional view of the container 1 with an inner stopper. As shown in FIGS. 1 and 4, the container 1 with an inner stopper of the present invention has a container body 2 having a cylindrical mouth portion 5, and a cylindrical side surface 10 that engages with the mouth portion 5 of the container body 2. It consists of an inner cap 3 and an outer cap 4 having a cylindrical side surface 15 that is screw-engaged with the mouth portion 5 of the container main body 2. By removing the inner plug 3 and putting new contents into the container main body 2, Used as a refill container such as shampoo that is used repeatedly.

As shown in FIGS. 1 and 3, the container body 2 has a bottle shape with a thin upper portion, and the mouth portion 5 is formed in a cylindrical shape at the upper portion of the body. As shown in FIG. 3, the outer surface of the mouth portion 5 has a cylindrical shape with an upper portion having a step whose radius is smaller than the lower portion, and the upper portion of the mouth portion 5 is used for engagement with the inner plug 3. The lower stage is used for engagement with the outer cap 4. The shape of the container body 2 is not limited to the bottle shape, and other shapes can be used.

In order to engage with the inner plug 3, the upper portion of the outer surface of the mouth portion 5 is provided with a protruding portion 7 that makes a round of the outer surface, and an annular groove that is positioned below the protruding portion 7 and makes a round of the outer surface. 9 and a slit 8 that obliquely crosses the protruding portion 7 and is connected to the annular groove 9, and a thread 6 is provided on the lower side of the outer surface of the mouth portion 5 for engagement with the outer cap 4. . As shown in FIG. 5, two slits 8 are arranged so as to face each other on the outer surface of the mouth part 5, but the number is not particularly limited, and the inclination angle, width, The cross-sectional shape and the like can also be set as appropriate. Further, by expanding the upper end portion of the slit 8, it is possible to make it easier to insert a locking projection 11 described later into the slit 8.

As shown in FIG. 2, the inner plug 3 is provided with a discharge port 13 for discharging the contents accommodated in the container body 2 at the center of the upper surface, and a convex portion 14 is formed in a ring so as to surround the discharge port 13. A cylindrical insertion portion 12 that is inserted into the mouth portion 5 is formed inside the side surface 10 that is used for engagement with the container body 2. Then, two locking projections 11 are provided on the inner surface of the side surface 10 at positions facing each other. In order to insert the locking projection 11 into the slit 8, the locking projection 11 is formed obliquely according to the inclination angle of the slit 8 (so that the upper surface is a parallelogram). The shape is not particularly limited as long as it is an easy shape, and various shapes such as a hemispherical shape and a rectangular shape can be used.

As shown in FIG. 4, the outer cap 4 is composed of an upper surface serving as a lid and a cylindrical side surface 15 used for screw engagement with the mouth portion 5 of the container body 2. A packing 17 is provided for increasing the pressure. On the inner surface of the side surface 15, a screw thread 16 that is screw-engaged with a screw thread 6 provided in the mouth portion 5 is provided.

The engagement between the inner plug 3 and the container body 2 will be described. When the inner plug 3 is attached to the container body 2, the inner plug 3 is put on the mouth part 5 of the container body 2 and is rotated rightward while being pressed against the mouth part 5. Then, the locking projection 11 provided on the inner plug 3 rotates in contact with the upper surface of the protruding portion 7 of the mouth portion 5, and when it comes to the slit 8 of the protruding portion 7, the locking projection 11 Enters the slit 8 and moves diagonally downward. At this time, the two locking projections 11 move in the same manner in the two slits 8. Thereby, the inner plug 3 moves downward while rotating.

When the locking projection 11 passes through the slit 8, it next enters the annular groove 9 positioned below the projecting portion 7 and moves in the annular groove 9 in the horizontal direction. When the locking projection 11 is stopped between the two slits 8 in the annular groove 9, the locking projection 11 is restricted from moving upward by the protruding portion 7, and the two locking projections 11. And the protruding portion 7 are engaged, and the inner plug 3 is engaged with the mouth portion 5 and attached to the container body 2. In this manner, with the inner plug 3 engaged with the container body 2, the contents stored in the container body 2 are discharged from the discharge port 13, and the container body 1 with an inner plug is used.

When removing the inner plug 3 from the container body 2, the inner plug 3 is rotated leftward while pulling the inner plug 3 upward. Then, the locking projection 11 provided on the inner plug 3 moves in the annular groove 9 in a state where the locking projection 11 is in contact with the lower surface of the protruding portion 7 of the mouth portion 5. When it comes to the position of the slit 8, it enters the slit 8 and then moves diagonally upward. As a result, the inner plug 3 moves upward while rotating. When the locking projection 11 passes through the slit 8, the inner plug 3 is completely disengaged from the mouth portion 5 of the container body 2, and the inner plug 3 is removed from the container body 2.

Depending on the position of the locking projection 11 with respect to the slit 8 in order to insert the locking projection 11 into the slit 8 when removing or attaching the inner plug 3, The inner plug 3 needs to be rotated half a turn at maximum. The inner plug 3 can be removed or attached by rotating the inner plug 3 to some extent necessary for the locking projection 11 to pass through the slit 8. Thereby, since the container 1 with an inner stopper of the present invention can be removed or attached without rotating the inner stopper 3 once, it can be removed or attached more easily than when using screw engagement.

The number of rotations required for removing or attaching the inner plug 3 varies depending on the number of the locking projections 11 and the slits 8. If the number of the locking projections 11 and the slits 8 is small, the number of rotations increases. If the number is large, the number of rotations decreases. However, even when only one locking projection 11 and one slit 8 are provided, the inner plug 3 can be removed or attached by rotating the inner plug 3 by one full rotation. Since the number of rotations is significantly smaller than when used, it can be said that the operation of the inner plug 3 is simple.

However, when one locking projection 11 is used, when the inner plug 3 is removed or attached, the inner plug 3 tilts smoothly when the locking projection 11 moves through the slit 8, and the inner plug smoothly 3 may not be able to move, it is preferable to provide a plurality of locking projections 11 and slits 8 in order to move the inner plug 3 smoothly.

The numbers of the locking protrusions 11 and the slits 8 can be set as appropriate, and the locking protrusions 11 and the slits 8 can be different numbers. For example, as shown in FIG. 6, two locking protrusions 11 and four slits 8 may be used. In this case, when the two locking projections 11 are arranged at opposing positions, the slit 8 needs to be arranged as a set so as to correspond to the two locking projections 11. Here, four slits 8 are arranged at equal intervals.

When such an inner plug 3 is removed or attached, the two locking projections 11 enter the closest slit 8, and therefore, when the inner plug 3 is rotated at least a quarter, the two locking projections 11 are It enters into two opposing slits 8 respectively. After the locking projection 11 enters the slit 8, the inner plug can be removed or attached by rotating the inner plug 3 by the same amount as in the case of two slits 8. As a result, the inner plug 3 can be attached or detached with a smaller number of rotations.

As described above, when the number of the locking projections 11 and the number of the slits 8 is different, the number of the slits 8 needs to be larger than the number of the locking projections 11. Further, if the number of the slits 8 is increased too much, the inner plug 3 may easily come off, so care must be taken in determining the number.

As shown in FIG. 4, in the state where the inner plug 3 is attached to the container body 2, the locking protrusion 11 can move in the annular groove 9 in the horizontal direction, so that force is applied to the inner plug 3. If it is, the inner plug 3 may rotate. However, the upper plug 3 does not come off from the mouth portion 5 simply by rotating, but if it is rotated and pulled upward, the locking projection 11 is not inserted into the slit 8. Therefore, even if some force is applied to the inner plug 3 when the container 1 with the inner plug is used, the inner plug 3 does not come off easily. The engaged state is kept stable.

When attaching the outer cap 4 to the container body 2, since conventional screw engagement is used, the outer cap 4 is put on the inner plug 3 and rotated rightward so that the outer cap 4 is rotated. Are threadedly engaged with the thread 6 of the mouth 5. Thereby, the outer cap 4 is attached to the container body 2.

As shown in FIG. 1, when the outer cap 4 is engaged with the mouth portion 5, the packing 17 is in close contact with the upper end portion of the inner plug 3, and is further formed on the upper surface of the inner plug 3. The protruding portion 14 is in a state of being caught in the packing 17, thereby increasing the sealing degree of the container body 2 and preventing the contents from leaking from the discharge port 13.

As described above, the inner stopper 3 of the container 1 with the inner stopper according to the present invention is engaged with the container body 2 using a projection as in the prior art, but when the inner stopper 3 is removed or attached, the slit 8 Since the engagement protrusion 11 is allowed to pass through and the engagement protrusion 11 can be easily engaged or disengaged without applying force, the inner plug 3 can be attached and removed with a simpler operation than before. be able to. Further, since the locking projection 11 is not deformed and does not get over the protruding portion 7, even if the inner plug 3 is used repeatedly, the locking projection 11 is deformed or worn down. The engagement state of the inner plug 3 is not loosened and can be used stably for a long period of time.

DESCRIPTION OF SYMBOLS 1 Container with inner stopper 2 Container main body 3 Inner stopper 4 Outer cap 5 Mouth part 6 Screw thread 7 Projection part 8 Slit 9 Annular groove 10 Side face 11 Locking protrusion 12 Insertion part 13 Outlet 14 Convex part 15 Side face 16 Screw thread 17 Packing

Claims (1)

A container main body having a cylindrical mouth, an inner stopper having a discharge port for contents in the container main body and engaging with the cylindrical mouth of the container main body, and a screw engaging with the mouth of the container main body A container with an inner cap consisting of an outer cap to be joined,
On the outer surface of the cylindrical mouth, a projecting portion that makes one round of the outer surface, an annular groove that is located below the projecting portion and makes a circuit around the outer surface, and that obliquely crosses the projecting portion, the annular groove Providing a thread that engages with a slit that leads to and a thread that is located below the annular groove and that is provided on the outer cap;
The inner plug has a cylindrical side surface, and is provided with a locking projection that engages with the protrusion on the inner surface of the side surface,
The locking projection of the inner plug passes through the slit provided in the protruding portion and is moved to the annular groove, whereby the locking projection is engaged with the protruding portion and the inner plug is moved into the container. A container with a stopper, which is attached to the mouth of the main body.